SEW LOCAL: “Make it in Manhattan,” a documentary celebrating New York design and local manufacturing, is a grass roots-indie production. Directed by James Belzer, who helmed “The Tents,” a documentary about Seventh on Sixth’s move from Bryant Park to Lincoln Center, the production team has cobbled together funds from sources such as Fashion Group International and Lowes Hotels and Resorts. Designer Michelle Vale is co-producer with Mitria Di Giacomo. Vale contacted Belzer with the idea of making the film jast as he finished “Tents.” “As a small designer, people didn’t care that I was making handbags in New York,” said Vale. “I thought, ‘I’ve got to find a way to get the importance across to people.’ I got involved with Save the Garment Center. It took one conversation over the phone with James to get the project started.” The film visits designers, key industry figures, academics and factory workers. Nanette Lepore, Yeohlee Teng and Anna Sui, designers who’ve gotten behind the initiative to save the Garment Center, were interviewed, along with Andrew Rosen, Martha Stewart, Ralph Rucci and Simon Collins, dean of fashion at Parsons The New School for Design. A trailer of the film will be shown on Friday from 9 a.m. to 2 p.m. when Vale presents her fall collection at Trim Lab, 252 West 37th Street, third floor.